left over in animal carcasses, after the quality parts destined for human consumption have all been removed what s left are called by-products. I know, I know I sound dramatic again but this topic can't be taken lightly! That 'quality' part of dog food in many of the dog foods available is almost all gone, and what's left is the garbage . This low quality and potentially harmful garbage is added to dog food, rather than being thrown in the trash bin where it really belongs, or rather than being used for fertilizer, because it is so inexpensive . and dog food companies can then fill your dogs belly for a few pennies. Most people that read dog food labels have no idea what by-products really are and how potentially harmful, or lethal, it can be to their beloved family dog. These by-products include: organs, intestines, heads, feet, MANURE (yes manure) and so on. Pay close attention to these official government definition wordings below!. they are often hard to understand ...